Disks only detected when passed through to a VM, not on the host (using a HBA)

[leesteken]

ok this is fixed basicaly..

i used `pcie_acs_override=downstream,multifunction` as kernel options in grub and was able to split them into individual groups.

I advise against that work-around as the VM with the GPU can now read all memory of the Proxmox host (including other VMs and passwords). Can't you physically move the HBA or the GPU to another PCIe slot?

 

[kafteras]

I advise against that work-around as the VM with the GPU can now read all memory of the Proxmox host (including other VMs and passwords). Can't you physically move the HBA or the GPU to another PCIe slot?

No other slot to move it to..

I have also a mellanox 10gbit card.
Certainly i dont want the network to not be available

 

[leesteken]

No other slot to move it to..

I have also a mellanox 10gbit card.
Certainly i dont want the network to not be available

If the devices that you keep on the Proxmox host are in the same group, that's fine. Just don't mix devices from the same group between VM(s) and Proxmox. If you can't then that's fine with me, I just want you to know about the security/isolation hole that you created.

 

[leesteken]

Hello all,
I also have to chime in on this topic. I have the same problem. Since I can not boot from the disk enclosure, I use the "normal" RAID controller for that. The disks are recognized, but the log says that the disks have unsupported sector sizes:

Maybe this level1techs forum post can help you (get started)?